Worksheet – Mole Conversions



MOLE STUDY GUIDE (HONORS) Name:

Show all work, including conversion factors and units.

What is the mass of 1 mole (molar mass) of:

1. Calcium nitrate 2. Magnesium hydroxide

3. CO2 4. Aluminum sulfite

5. How many moles is 12.5 g of magnesium sulfate?

6. How many grams are in 4.3 x 1023 formula units of aluminum chloride?

7. How many liters make up 2.0 moles of hydrogen gas at STP?

8. How many moles is 2.0 x 1025 molecules of silver nitrate?

9. How many molecules are in 96 g of carbon dioxide?

10. How many atoms are in 13.5 L of helium at STP?

11. What is the volume of 1.0 x 1025 molecules of carbon monoxide at STP?

12. How much would 2.75 x 1024 molecules of hydrophosphoric acid weigh?

13. Determine the % composition for each element in the following compounds:

a. Barium phosphate b. Gold (II) chlorate

c. Magnesium hydroxide d. Lithium oxide

14. A compound with an empirical formula of C2OH4 and a molar mass of 88 grams per mole. What is the molecular formula of this compound?

15. A compound with an empirical formula of C4H4O and a molar mass of 136 grams per mole. What is the molecular formula of this compound?

16. What’s the empirical formula of a molecule containing 65.5% carbon, 5.5% hydrogen, and 29.0% oxygen?

17. What’s the empirical formula of a molecule containing 18.7% lithium, 16.3% carbon, and 65.0% oxygen?

18. If the molar mass of the compound in problem 17 is 73.8 grams/mole, what’s the molecular formula?

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download